Internet Explorer-based programs will not connect

Certain applications that use the same ports I guess; or something of that sort, as Internet Explorer cannot connect. Some of my internet applications work, some don't. For instance, World of warcraft cannot connect, and it uses the same ports as internet explorer. I can use firefox and a lot of other applications but when I try to use internet explorer (Which I never do, I just want to play WoW) It comes up with : "Cannot find Make sure the path or internet address is correct", It won't load any page you try to connect to, giving you the same error message every time. The same thing happens when I try to launch WoW. It says the same message except with the launcher page link as the one that it can't connect to. I type it into my firefox browser and it worked fine, so that shows that my router is not blocking their servers. This is very annoying and I would love to get it fixed. Thanks!

From your screenshot it looks like you have no anti-virus running and you've got Windows updates pending. Have you considered scanning for malware/viruses? Have you checked your HOSTS file for any unusual entries?